Abstract: A grease, smoke, and odor extraction system includes an outer housing including a lower entrance passage and an upper exit duct for drawing the exhaust airstream upwardly through a scrubbing chamber, the lower entrance passage is fitted with a pipe which discharges ozone gas into the exhaust air and, alternatively, a water supply manifold which directs the water into the ozonated exhaust stream at the chamber area in such as way as to create a vortex of water droplets in the ozonated exhaust stream to encourage the extraction of grease, fumes, and other contaminants from the stream. Several alternate embodiments as described including a housing, an ozone generator, an ozone injector into the housing in combination with a baffle member and alternatively water and filter members for use with kitchen exhaust systems as well as water treatment systems and the like.

Abstract: A grease, smoke, and odor extraction system includes an outer housing including a lower entrance passage and an upper exit duct for drawing the exhaust airstream upwardly through a scrubbing chamber, the lower entrance passage is fitted with a pipe which discharges ozone gas into the exhaust air and, alternatively, a water supply manifold which directs the water into the ozonated exhaust stream at the chamber area in such as way as to create a vortex of water droplets in the ozonated exhaust stream to encourage the extraction of grease, fumes, and other contaminants from the stream. Several alternate embodiments as described including a housing, an ozone generator, an ozone injector into the housing in combination with a baffle member and alternatively water and filter members for use with kitchen exhaust systems as well as water treatment systems and the like.

Abstract: A grease extraction system includes an outer housing including a lower entrance passage and an upper exit duct for drawing the exhaust air stream upwardly through a scrubbing chamber, and a water supply manifold directs the water into the exhaust stream at the chamber area in such a way as to create a vortex of water droplets in the exhaust stream to encourage the extraction of grease, fumes and other contaminants from the stream.

Abstract: The makeup air device includes a front chamber, a lower wall of which is adapted to force rising smoke and the like into an intake of a grease extraction ventilator. A depending passage at the lower front of the device has an air outlet which discharges air toward the ventilator intake. An adjustment baffle having a forwardly slanted lower flange is moved in the outlet between a position of maximum flow and a position of no flow. Louvers in the front wall of the chamber above the passage are adjustable, so that different amounts of fresh air may flow into the room in which the cooking equipment is placed.